Airworthiness Directive 2022-03-01

one-time
Official AD 2022-03-01 · FR doc 2022-02716 · 2022-02-10 · airframe

Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Diamond Aircraft Industries GmbH (DAI) Model DA 42, DA 42 M-NG, and DA 42 NG airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as dissolved or detached fuel tank hose material entering the main fuel tank chambers, which could result in restricted fuel flow with consequent fuel starvation. This AD requires removing the fuel tank connection hoses from service and inspecting the fuel tank connection hoses for damage and detached rubber material. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2022-03-01 applies to

MakesDiamond Aircraft Industries Gmbh
ModelsDA 42, DA 42 M-NG, DA 42 NG
Serial-conditional — narrows to serials 42.N303–42.N314, 42.N319–42.N319, 42.N320–42.N320.
Part-conditionalD4D-2817-10-70.

Applies to (1) DA 42 NG airplanes, S/N 42.N303 through 42.N314, 42.N319, and 42.N320, with fuel tank connection hose P/N D4D-2817-10-70 installed; and (2) DA 42, DA 42 NG, and DA 42 M-NG airplanes, all serial numbers, with fuel tank connection hose P/N D4D-2817-10-70 identified in Diamond Mandatory Service Bulletin MSB 42-138/MSB 42NG-080, dated July 1, 2019, installed.

Whether AD 2022-03-01 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 2022-03-01 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.